在eloquent中使用keyBy方法和方法

Question

我想在Eloquent中使用带有方法的keyBy方法。像这样：

$settings = $settings->with(
    array('languages' => function($query)
    {
        $query->get()->keyBy('languages_language_id');
    })
)->get()->keyBy('setting_key');

我该怎么做？感谢。

Answer 1

您不能直接在with条款中执行此操作，而是可以使用keyBy版本覆盖该集合：

foreach ($settings as $keySetting => $setting)
{
    $settings[$keySettings]->languages = $settings[$keySettings]->languages->keyBy('languages_language_id');
}

如您所见，您仍然需要迭代结果并逐个重新排序。这只是使用keyBy你正在做的事情的更简洁版本。

Answer 2

最后我用这个：

$settings = $settings->with('languages')->get()->keyBy('setting_key')->toArray();
foreach ($settings as $keySetting => $setting)
{
    $languages = $setting['languages'];
    $settings[$keySetting]['languages'] = array();
    foreach ($languages as $lang)
    {
        $settings[$keySetting]['languages'][$lang['languages_language_id']] = $lang;
    }
}